# 求水仙花数

num = int(input("请输入一个三位数："))
a = num // 100
b = num % 100 // 10
c = num % 10

if num == a ** 3 + b ** 3 + c ** 3:
    print("yes")
else:
    print("no")


x = 15
if x < 5:
    print("5")
elif x < 10 & x >= 5:
    print("5-10")
else:
    print("11")


